20202102211001 has 2 divisors, whose sum is σ = 20202102211002. Its totient is φ = 20202102211000.

The previous prime is 20202102210967. The next prime is 20202102211007. The reversal of 20202102211001 is 10011220120202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20200089791401 + 2012419600 = 4494451^2 + 44860^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202102211001 - 2²² = 20202098016697 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202102211007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101051105500 + 10101051105501.

It is an arithmetic number, because the mean of its divisors is an integer number (10101051105501).

Almost surely, 2^{20202102211001} is an apocalyptic number.

It is an amenable number.

20202102211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202102211001 is an equidigital number, since it uses as much as digits as its factorization.

20202102211001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20202102211001 its reverse (10011220120202), we get a palindrome (30213322331203).

The spelling of 20202102211001 in words is "twenty trillion, two hundred two billion, one hundred two million, two hundred eleven thousand, one".